(a) Following are the transition metal ions of 3d series: Ti4+,V2+,Mn3+,Cr3+ (Atomic numbers : Ti = 22, V = 23, Mn = 25, Cr = 24) Answer the following: (i) Which ion is most stable in an aqueous solution and why? (ii) Which ion is a strong oxidising agent and why? (iii) Which ion is colourless and why? (b) Complete the following equations: (i) 2MnO−4+16H++5S2−→(ii) KMnO4Heat−−−→

(a) Following are the transition metal ions of 3d series: Ti4+,V2+,Mn3

1.	(a) Following are the transition metal ions of 3d series: Ti4+,V2+,Mn3+,Cr3+ (Atomic numbers : Ti = 22, V = 23, Mn = 25, Cr = 24) Answer the following: (i) Which ion is most stable in an aqueous solution and why? (ii) Which ion is a strong oxidising agent and why? (iii) Which ion is colourless and why? (b) Complete the following equations: (i) 2MnO−4+16H++5S2−→(ii) KMnO4Heat−−−→
Answer» (a) Following are the transition metal ions of 3d series: $T i^{4 +}, V^{2 +}, M n^{3 +}, C r^{3 +}$ (Atomic numbers : Ti = 22, V = 23, Mn = 25, Cr = 24) Answer the following: (i) Which ion is most stable in an aqueous solution and why? (ii) Which ion is a strong oxidising agent and why? (iii) Which ion is colourless and why? (b) Complete the following equations: $(i) 2 M n O_{4}^{-} + 16 H^{+} + 5 S^{2 -} \to (i i) K M n O_{4} H e a t - -- \to$